Those quotes do not show gNewSense includes non-free software. What's interesting is that they admit they cannot find all blobs without truly reading and understanding the code, they lack people for it.
They say they can't reliably find all the binary-only firmware. Nobody's perfect. What matters is that they are doing their best, and that they fix problems that are reported to them. That's all I can ask of anyone. Gilles' message seems to say that OpenBSD policy is to allow binary-only firmware. Is that correct?